Miner&#39;s drill.



A 0 9 1 2 2 R A M D E T E T A P L n MR GD m m WN .I M om 5 A 5 5 7 o N.

APPLICATION FILED SEPT. 29. 1903.

2 snnms-snnmi.

vn o- MODEL.

- .[nuvnfarn- (UZZ Cox,

.No. 755,458. PATENTED MAR. 22, 19-04.

W. D; 00X... MINER/S DRILL.

APPLICATION FILED SEPT. 29, 1903.

N0 MODEL.

2 SHBETMsHEET 2.

344 ma wto'n Win 11135113 Patented March 22;, 1904:.

PATENT EEIcE.

WILL D. COX, OF MARSHFIELD, OHIO.

IVIINERS DRILL.

SPECIFICATION forming part of Letters Patent N0. 755,458, dated March 22, 1904.

Application filed September 29, 1903. Serial No. 175,059. (No model.)

To all whom, it may concern:

Be it known that I, WILL D. COX, a citizen of the United States, residing at Marshfield, in the county of Athens and State of Ohio, have invented certain new and useful Improvements in Miners Drills, of which the following is a specification.

This invention provides improvements in drills particularly adapted for use in coalmines though of a structure suitable for use in various other mining operations.

The object of the invention is to combine with a novel structure of support an improved drill-operating mechanism to be carried by the 1said support for use in connection therewit For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and drawings hereto attached.

While the essential and characteristic features of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view showing the invention in operative position. Fig. 2 is a side elevation of the invention. Fig. 3 is a top plan view of a portion of the laterally-disposed arm carrying the drill-operating mechanism. Fig. 4 is a view of the parts shown in Fig. 3, the position of the carrier-advancing worm when thrown out of engaging relation with the toothed carryingarm being shown in dotted lines.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The supporting means comprises a supporting-post 1, provided with a plurality of teeth 2 upon one side thereof. -A base 3, provided with legs t, is disposed at the lower portion of the supporting post 1, being slidably mounted 1 permit of the slidable movement of the base 3 with reference to the post, a transverse pin 7 passing through the base and received within the slots 6 to hold the base in position and guide the same in its movement. A vertical arm 8 is mounted upon the supporting-post, being provided at its lower end with a lug 9, adapted to engage with the teeth 2 of the post 1 to hold the vertical arm 8 at an ascertained adjustment as regards the said post. A guide 10, projected from the upper end of the post, receives the vertical arm 8, directing its movement, as well as holding the same upon the post. A second guide 11 is carried by the lower end portion of the vertical arm 8, being of a size to permit suflicient movement of the lower end portion toward and from the post 1 to allow the lug 9 to be engaged or disengaged from the teeth 2 in fixing the adjustment ofthe said arm to raise or lower the same. The upper extremity of the vertical arm 8 is adapted to engage the roof of the mine, the legs 4 of the base 3 being disposed upon the floor of the mine. In order to firmly dispose the supporting-post in position, other means for adjusting the position of the same are provided. The said means comprises a wedge 12', having a flat side to be disposed in contact with the upper side of the base 3, being provided upon its upper portion longitudinally thereof with teeth 13. A toothed cam-lever 1A is pivoted between the bar 5 and the lower portion of the supportingpost 1, the toothed portion of the said lever being adapted'to mesh with the teeth 13 upon the wedge 12 to cause actuation of the wedge to thereby cause a downward movement of the base 3, which forces the legs 4: into the floor of the mine, and the upper end of'the arm 8 is also impinged against the roof of the mine. The support 1 is rigidly positioned by the aforedescribed portion. Stops 15, projected from corresponding end portions of the wedge 12, prevent displacement of the V the bifurcated end portions 17 to hold the arm 16 at the desired adjustment relative'to the supporting-post 1. This means in the drawings is illustrated as a set-screw. The upper portion of the arm 16 is provided with teeth 19 longitudinally thereof, and the carrier 20 is mounted upon the arm, being adapted to be advanced automatically as the drill is operated. An adjustable point 21 is provided upon the free end of the arm 16, being utilized as means for engaging the wall of the mine upon which the drill 22 is being used.

The carrier 20 is slidably mounted upon the arm 16, and the same carries the drill mechanism. Upon one side of the carrier 20 is disposed the drive. or power gear 23, which is operated by means of a crank-handle 24 in a manner readily apparent. The gear 23 is provided with teeth meshing with a gearwheel 25, mounted upon the carrier and adapted to cause revolution of the drill-holder 26, being keyed or otherwise secured to the shaft 27 upon the end of which the drillholder is disposed. The drive gear 23 is mounted upon the projecting end of a wormshaft 28, transversely disposed relative tov the carrier and actuated by the drive-gear. A worm 29 is mounted longitudinally of the carrier between the sides thereof and is provided with teeth 30, meshing with the worm-shaft 28 to thereby transmit motion to the worm 29 upon actuation of the shaft 28 by the drivegear. The Worm 29 engages the teeth 19 of the arm 16 and advances the carrier as the drill is operated. The Worm 29 and the gear-wheel 25, by which the drill is operated, are simultaneously actuated, so that as the drill enters the opposing wall the carrier 20 is automatically advanced. In order to permit of reverse movement of the carrier 20 after a hole has been drilled, the worm 29 is pivotally as well as rotatably mounted. For this purpose a transverse shaft 31 is mounted between the sides of the carrier and is provided with a journal to receive one of the journals of the worm 29. The opposite journal of the worm 29 is mounted in a journal provided in a pivoted member 32, which is provided at the rear end portion of the carrier 20 and when closed upon the carrier is adapted to support one of the journals of the worm. When the pivoted member 32 is thrown open, the journal of the worm, which cooperates with the said member, is exposed and unsupported, this permitting of a pivotal movement of the Worm upwardly to throw the same out of engagement with the teeth 19, whereupon the carrier 20 may be moved toward the supporting-post the desired distance, after which the worm is again thrown into engagement with the arm 16, and the pivoted member 32 is then disposed in 006perative relation, supporting the journal of the worm in a manner before described. The member 32 is adapted to be locked to the carrier by any suitable means, such as a pin 33, when supporting the journal of the worm 29.

The operation of the device is as follows: The supporting-post 1 is first disposed adjacent the wall in which the hole is to be drilled. The vertical arm 8 is actuated so as to cause engagement of the upper end thereof with the roof of the mine, after which in order to more rigidly position the support the cam-lever 14 is operated so as to impinge the legs 1 against the floor of the mine and the upper end of the vertical arm against the roof of the mine. The laterally-disposed arm 16 is next adjusted, the point 21 supporting the forward end of the said arm. Upon operation of the drivegear 23 the worm-shaft 28 is actuated, as well as worm 29. The worm 29 slowly advances the carrier. The revolution of the drive-gear 23 likewise causes actuation of the gear 25 and the drill-carrier by the drill-holder 26.

Having thus described the invention, what is claimed as new is g 1. In combination with supporting means for drill-operating mechanism, a base, a sup-- porting-post movably mounted upon said base, a wedge for actuation of said supporting-post, and a lever arranged for actuation of sai wedge.

2. The combination with supporting means for drill-operating mechanism, a base, a supporting-post adjustable upon the base, and means comprising a wedge and cam-lever for adjusting the position of the post upon the base.

3. The combination with supporting means for drill-operating mechanism, a supportingpost, an. arm vertically adjustable upon said post, a base secured to the lower end of the post,apin-and-slot connectionbetweenthe base and the post, and independent means for actuating the post to raise and lower the same upon the base.

4. The combination with supporting means for drill-operating mechanism, of a supporting-post longitudinally toothed, a vertical arm adjustably mounted upon the post and cooperating with the toothed portions thereof, a base having a pin-and-slot connection with the post, a cam-lever pivoted to the post, a wedge secured to the post and cooperating with the base and cam-lever to cause actuation of the post.

5. The combination with supporting means for drill-operating mechanism, of a toothed supporting-post, a vertical arm adjustable relative to the supporting-post and provided with means cooperating with the toothed portion of the latter to fixits'relative adjustment, a bar spaced from the supporting-post, a base secured by a pin-and-slot connection intermediate the bar and post, a toothed cam-lever pivoted between the said bar and post, a toothed wedge for cooperation with the camlever to cause actuation of the post and to fix the position of the same relative to the base,

porting-post.

6. The combination of supporting means for drill-operating mechanism, a base, a post adjustable upon the base, a pin-and-slot connection between the post and the base, and independent means for raising and lowering the post upon the base.

7 The combination with a toothed suppoiting-arm, a carrier mounted upon the supporting-arm, a drive-gear disposed upon the carrier, a drill also disposed upon the carrier, and a worm for cooperation with the toothed portion of the supporting-arm to cause advancement of the carrier, said worm being rotatably and pivotally mounted to permit of engagement and disengagement thereof from the toothed portion of the supporting-arm.

8. The combination witha toothed supporting-arm, a carrier mounted thereon, a transverse worm-shaft disposed upon the carrier, a drive-gear mounted upon the worm-shaft, a worm pivotally and rotatably mounted upon the carrier and adapted for actuation by the worm-shaft aforesaid, a drill-holder, a gearwheel for actuation of the drill-holder and adapted for cooperation with the drive-gear operated simultaneously with the worm. aforesaid, the said worm engaging the toothed portion of the supporting-arm to advance the carrier.

9. The combination with a toothed supporting-arm, a carrier mounted thereon, a transverse worm-shaft disposed upon the carrier, a drive-gear mounted upon the worm-shaft, a drill-actuating gear meshing with the drivegear aforesaid, and a worm engaging the toothed portion of the supporting-arm to advance the carrier, said worm being provided with a toothed portion engaging the main worm-shaft whereby said worm is actuated.

In testimony whereof I afiix my signature in presence of two witnesses.

WILL D. COX. Witnesses:

A. E. PRIcE, JOHN M. Cox. 

